A Preliminary Study on Biodiversity of Cyanobacteria of Agniar Estuary, Pudukkottai

Author(s): R. Anbalagan and R. Sivakami* PG &

Abstract: In the present study, a total of 38 species belonging to 12 classes were recorded. Among the various classes, Oscillatoriaceae recorded maximum diversity by recording 10 species followed by Phormidiaceae recording five species and Nostocaceae by four species; while Chrococeaceae, Merispropediaceae and Microcystaceae recorded three species each, Scytonemataceae and Pseudoanabaenaceae were represented by two species and classes Dermocarpaceae, Synechoccaceae and Xenococcaceae were represented only by one species each. A familywise comparison reveals that Phormidiaceae and Sycotomateaceae preferred February to record their highest counts, while Dermococcaceae preferred May and Merispopediaceae recorded the maximal counts in June. However, Synechoccaceae registered their maxima in July while Nostococcaeceae preferred July and August and Chrococcaceae recorded their maxima in October.

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